I ordered the 6006 switch using the cheapest delivery method. It arrived in less than half the promised date. Switch arrived well packaged and in good condition. I opened the back and found the contact points were well lubricated and the back cover was sealed with an O-ring. Bought this switch to eliminate removing the battery leads to isolate it from the system to prevent drain and minimize corrsion. Now the battery leads can be left attached and the electrical system isolated. In the event of an electrical emergency the system can be easily killed. The switch knob has distinct detents to feel position. Very happy with the switch and has simplified battery ops. I understand this is a product of the USA. Instuctions could be more detailed showing mounting options and internal arrangement. However, installation was pretty straight forward.